8927 plugin search (#10489)

* #7016 base search classes

* 7016 add search indexes

* 7016 add search indexes

* 7016 add search indexes

* 7016 add search indexes

* 7016 add search indexes

* 7016 add search indexes

* 8927 refactor search

* 8927 refactor search

* 8927 refactor search

* 8927 refactor search

* 8927 get search choices working

* 8927 cleanup - optimize

* 8927 use backend search function

* 8927 fix for plugin search

* 8927 add docs

* Move search app to a module under netbox/

* Utilize global registry to register model search classes

* Build search form options from registry

* Determine search categories from model app by default

* Enable dynamic search registration for plugins

* Update docs & improve plugin support

* Clean up search backend class

* Docs for #8927

Co-authored-by: jeremystretch <jstretch@ns1.com>

netbox/extras/plugins/__init__.py

@@ -9,6 +9,7 @@ from django.template.loader import get_template
 from extras.plugins.utils import import_object
 from extras.registry import registry
 from netbox.navigation import MenuGroup
+from netbox.search import register_search
 from utilities.choices import ButtonColorChoices
 
 
@@ -60,6 +61,7 @@ class PluginConfig(AppConfig):
 
     # Default integration paths. Plugin authors can override these to customize the paths to
     # integrated components.
+    search_indexes = 'search.indexes'
     graphql_schema = 'graphql.schema'
     menu = 'navigation.menu'
     menu_items = 'navigation.menu_items'
@@ -69,6 +71,11 @@ class PluginConfig(AppConfig):
     def ready(self):
         plugin_name = self.name.rsplit('.', 1)[-1]
 
+        # Search extensions
+        search_indexes = import_object(f"{self.__module__}.{self.search_indexes}") or []
+        for idx in search_indexes:
+            register_search()(idx)
+
         # Register template content (if defined)
         template_extensions = import_object(f"{self.__module__}.{self.template_extensions}")
         if template_extensions is not None: